Missing Authorization in RabbitMQ Server - CVE-2026-67218
Published: July 9, 2026 / Updated: September 28, 2026
Vulnerability identifier: #VU137247
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-67218
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to create persistent cluster-wide resources without required configure permission.
The vulnerability exists due to missing authorization in the HTTP super-stream creation handler when handling HTTP API requests to create super-streams. A remote privileged user can send a crafted HTTP request to create persistent cluster-wide resources without required configure permission.
Only instances with the rabbitmq_stream_management plugin enabled are vulnerable.
Affected software
RabbitMQ Server
How to mitigate CVE-2026-67218
Install security update from vendor's website.
RabbitMQ Server - addressed in versions 4.1.0 alpha, 4.1.11, 4.2.6